Cup holder



FIG. 1 is a top perspective view of a cup holder showing my new design;

FIG. 2 is a plan view of the design of FIG. 1;

FIG. 3 is a right side view of the design of FIG. 1, the opposite left side view being a mirror image;

FIG. 4 is a bottom view of the design of FIG. 1;

FIG. 5 is a front side view of the design of FIG. 1; and,

FIG. 6 is a rear view of the design of FIG. 1. 

The ornamental design for a cup holder, as shown and described. 